27138140 has 12 divisors (see below), whose sum is σ = 56990136. Its totient is φ = 10855248.

The previous prime is 27138119. The next prime is 27138151. The reversal of 27138140 is 4183172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678434 + ... + 678473.

It is an arithmetic number, because the mean of its divisors is an integer number (4749178).

Almost surely, 2^27138140 is an apocalyptic number.

27138140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27138140 is an abundant number, since it is smaller than the sum of its proper divisors (29851996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27138140 is a wasteful number, since it uses less digits than its factorization.

27138140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356916 (or 1356914 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 27138140 is about 5209.4279916321. The cubic root of 27138140 is about 300.5107595517.

The spelling of 27138140 in words is "twenty-seven million, one hundred thirty-eight thousand, one hundred forty".